Machine for pebbling and glazing leather and like purposes.



1. R. CAMERON & W. J. DENNIN.

MACHINE FOR PEBBLING AND GLAZING LEATHER AND LIKE PURPOSES.

APPLICATION FILED APR. 20, I914.

1, 18?, 1 1 Q Patented Apr. 27, 1915.

- hurra srArEe rA'r im ormon JAMES E. CAMERON AND WILLIAM J. DENNIN, or, ELIZABETH, new JEEsEY.

MACHINE Eon PEBBLING AND GLAZIN-G LEATHER AND LIKE: ruarosns.

' Patent ed Apr. 2 7, 1915.

Application filed April 20, 1914. Serial No. 833,035.

. provements in Machines for Pebbling and Glazing Leather and like Purposes, of which the following is a specification.

This invention relates to a machine that is constructed to provide a table on which I sheets are placed, the sheets being subjected desired amount of rubbing pressure.

to scouring, rubbing or slicking, the machine being applicable to a number of purposes, but beingillustrated 1n this case as applicable to a leather pebbling machine.

The invention-provides a machine of this type in which the mechanism that holds the rubbing element, such as a graining or pebbling stone, is adjustable, so that its pressure can be regulated, whereby the work, such as a hide, can be subjected to zppry V e also provide means for moving the arm or other'element to which the rubbing means,- such as a graining or pebbling stone, is'attached, so that when desired it may be prevented from engaging the work on the table, thus making it unnecessary to stop the machine in order toreplace one hide, or other object being worked upon, by another, which poses for which it is adapted.

In said drawing Figure 1 is a side view of a leather pebbling machine showing the improved form of apparatus in elevation. Fig. 2 is a section on line 22 in Fig. 1. Fig. 3 is a section on line 33 in Fig. 1.

The machine that we have illustrated consists of a bed 10 arranged on suitable legs 11, the bed having at one end a table por tion 12, which is usually arranged at an angle, although this is not essential. The table is arranged at the front end of the machine, the back end being supplied with a suitable bearing 13 in which is mounted a wheel 14, mounted on a shaft 15. The shaft 15 can be driven in any manner, as by a suit able belt, and the wheel 14+. can be used as a pulley, if desired. An arm 16 can be driven from the shaft 15 by a suitable crank, in the form shown the wheel 14 acting as a crank, being pivotally connected by a pin 17 to the rear end of the arm 16. The front end 18 of the arm 16 is provided with any suitable element to engage the goods or work operated on for the purpose of scouring, slicking, graining or any similar operation.

In the drawing we illustrate a slicking or pebbling member 19, this being usually made of glass and fastened in any suitable way to the endof the'arm. a suitable point, in the type of machine illustrated this being at a slight distance in the rear of the front end of the arm 16, is a lever 20 which. is pivotally mounted, as at 21, to the arm 16 and extends down through the frame, being pivotally attached at its lower end, as at 22, to a beam 23, the beam being pivoted in suitable bearings 24, and extend ing beyond the pivot bearings 24 to the rear and having its rear end 25 pivotally connected to a suitable regulating mechanism, one type of which will be hereinafter described.

Secured to the arm at A The lever 20, in preferred form, has a forked end at the top so that it extends up on both sides of the arm 16 and is clearly illustrated in Fig. 2, and it is preferably curved so that it can extend forward to the front end of the beam 23 and to the front portion of the arm 16, but avoid the back end 26 of the table 12. The rear end 25 of the beam 23 is preferably fastened to a stem 27 which extends through a plate 28 on the machine frame or through any othertfixed bearing or abutting element, being limited in its upward movement by a nut 29 which bears against a washer 30, which is preferably of leather so as to make the operation of the device as noiseless as possible, and to cut down the shock and jaron the nut. An adjusting nut 31 is arranged 011 the top of the stem and bears against a flange or disk 32. A suitable spring'33 bears on the flange 32 and on the plate 28, thus having a constant tendency to force the stem upward and in this way pull upward on the back end of the beam 23 which affords a downward pressure on the front end of the beam 23 and pulls down on the arm 16 and thus regulates the pressure of the stone or glass as it exerts on the arm. It will be understood that this pressure is regulated by the location of the nut 29, although other regulating means may be used to limit the movement of the stem induced by the spring.

In order to make the spring inactive and to raise the arm 16,1676 provide a suitable lifting mechanism which holds the forward end of the beam up and overcomes the pressure of. the spring 33. Q The type of holding means illustrated consists of a rod 34 which is pivoted at 22 so thatthe lever 20, the beam 23 and the rod 34 all swing on a common center. On the end of the rod 34 is arranged a slotted yoke 35 whichsets over an eccentric 36, the eccentric being mounted on a shaft 37 which can be turned by any suitable means,this being preferably a handle 38 projecting from the side of the machine. The shaft 37 is suitably mounted in bearings 39. When the eccentric is in the position shown in Fig. l

the spring is free tovexert its pressure on the beam, and consequently afiect therest of the adjusting mechanism, but when the eccentrio is turned by means of-the handle 38 the yoke is lifted, which, in turn, lifts the front end of the beam,anda in lifting the yoke and the beam also lifts the arm- 16, so that the front end of the arm is raised so that the work on the table is not operated on by the device on the endof the arm 16. The rais- 'ing of the arm can be done without stopping the machine, and: the insertion or withdrawal ofhides and similar goods is pro- Vided for by turning the handle '88, and

iwhen the handle is again turned to its original position the arm 16 is allowed to go down and the work is again operated on.

It will be evident that changes and modifications can be made in this machine without departing from the scope of the invention.

' 'Having thus described our invention, we claim: I V

a 1. Ina machine of the class described, an

"' -arm, rotating actuating means to which said arm is pivotally connected, rubbing means on said arm, a stationary table adapted to hold work to be engaged by said rubbing means, and means arranged below the level 33 of the table and connected with said arm for controlling the pressure exerted by said 3. A machine of the kind described comprising a frame, a table on said frame, a reciprocating arm having an implement on its end to engage work on the table, a beam adapted to rock on a fulcrum intermediate of its ends, a lever pivotally connected at one side of the fulcrum to the end of the beam and connected to the arm, yielding means connected to the beam on the side of the fulcrum opposite the lever, said yielding means influencing the beam to draw the arm toward the table, adjustable means for limiting the movement of the beam in said direction, and means for overcoming the yielding means and for raising thelever.

a. A machine of the kind described'comprising a frame, a table on said frame, a reciprocating arm having an implement on its end to engage work on the table, a beam adapted to rock on a fulcrum intermediate of its ends, a lever pivotally connected at one side of the fulcrum to the end of the beamand connected to the arm, yielding means connected to the beam on the side of the fulcrum opposite the lever, said yielding means influencing the beam to draw the arm toward the table, adjustable means for limiting the movement of the beam in said direction, a yoke connected to the beam, an eccentric within the yoke, and means for rotating the eccentric to overcome the yielding means.

In testimony that we claim the foregoing, we have hereto set our hands, this 18th day of April, 1914.

JAMES R. CAMERON. WILLIAM J. DENNIN.

Witnesses:

M. A. JoHNsoN, H. TRAUTVETTER.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, r Washington, D. G. 

